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      1 if(APPLE)
      2   set(OPENCL_FOUND YES)
      3   set(OPENCL_LIBRARY "-framework OpenCL" CACHE STRING "OpenCL library")
      4   set(OPENCL_INCLUDE_DIR "" CACHE STRING "OpenCL include directory")
      5   mark_as_advanced(OPENCL_INCLUDE_DIR OPENCL_LIBRARY)
      6   set(HAVE_OPENCL_STATIC ON)
      7 else(APPLE)
      8   set(OPENCL_FOUND YES)
      9   set(HAVE_OPENCL_STATIC OFF)
     10   set(OPENCL_INCLUDE_DIR "${OpenCV_SOURCE_DIR}/3rdparty/include/opencl/1.2")
     11 endif(APPLE)
     12 
     13 if(WINRT)
     14   set(OPENCL_FOUND NO)
     15   set(HAVE_OPENCL_STATIC OFF)
     16 endif(WINRT)
     17 
     18 if(OPENCL_FOUND)
     19   if(NOT HAVE_OPENCL_STATIC)
     20     try_compile(__VALID_OPENCL
     21       "${OpenCV_BINARY_DIR}"
     22       "${OpenCV_SOURCE_DIR}/cmake/checks/opencl.cpp"
     23       CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${OPENCL_INCLUDE_DIR}"
     24       OUTPUT_VARIABLE TRY_OUT
     25       )
     26     if(NOT TRY_OUT MATCHES "OpenCL is valid")
     27       message(WARNING "Can't use OpenCL")
     28       return()
     29     endif()
     30   endif()
     31 
     32   if(NOT WINRT)
     33     set(HAVE_OPENCL 1)
     34   endif()
     35 
     36   if(WITH_OPENCL_SVM)
     37     set(HAVE_OPENCL_SVM 1)
     38   endif()
     39 
     40   if(HAVE_OPENCL_STATIC)
     41     set(OPENCL_LIBRARIES "${OPENCL_LIBRARY}")
     42   else()
     43     unset(OPENCL_LIBRARIES)
     44   endif()
     45 
     46   set(OPENCL_INCLUDE_DIRS ${OPENCL_INCLUDE_DIR})
     47 
     48   if(WITH_OPENCLAMDFFT)
     49     find_path(CLAMDFFT_ROOT_DIR
     50               NAMES include/clAmdFft.h
     51               PATHS ENV CLAMDFFT_PATH ENV ProgramFiles
     52               PATH_SUFFIXES clAmdFft AMD/clAmdFft
     53               DOC "AMD FFT root directory"
     54               NO_DEFAULT_PATH)
     55 
     56     find_path(CLAMDFFT_INCLUDE_DIR
     57               NAMES clAmdFft.h
     58               HINTS ${CLAMDFFT_ROOT_DIR}
     59               PATH_SUFFIXES include
     60               DOC "clAmdFft include directory")
     61 
     62     if(CLAMDFFT_INCLUDE_DIR)
     63       set(HAVE_CLAMDFFT 1)
     64       list(APPEND OPENCL_INCLUDE_DIRS "${CLAMDFFT_INCLUDE_DIR}")
     65     endif()
     66   endif()
     67 
     68   if(WITH_OPENCLAMDBLAS)
     69     find_path(CLAMDBLAS_ROOT_DIR
     70               NAMES include/clAmdBlas.h
     71               PATHS ENV CLAMDBLAS_PATH ENV ProgramFiles
     72               PATH_SUFFIXES clAmdBlas AMD/clAmdBlas
     73               DOC "AMD FFT root directory"
     74               NO_DEFAULT_PATH)
     75 
     76     find_path(CLAMDBLAS_INCLUDE_DIR
     77               NAMES clAmdBlas.h
     78               HINTS ${CLAMDBLAS_ROOT_DIR}
     79               PATH_SUFFIXES include
     80               DOC "clAmdFft include directory")
     81 
     82     if(CLAMDBLAS_INCLUDE_DIR)
     83       set(HAVE_CLAMDBLAS 1)
     84       list(APPEND OPENCL_INCLUDE_DIRS "${CLAMDBLAS_INCLUDE_DIR}")
     85     endif()
     86   endif()
     87 endif()
     88